package com.atguigu.gmall.app.dws;

import com.atguigu.gmall.app.BaseSqlApp;
import com.atguigu.gmall.bean.ProvinceStats;
import com.atguigu.gmall.common.Constant;
import com.atguigu.gmall.util.FlinkSinkUtil;
import org.apache.flink.table.api.Table;
import org.apache.flink.table.api.bridge.java.StreamTableEnvironment;

/**
 * @Author lizhenchao@atguigu.cn
 * @Date 2021/8/6 15:06
 */
public class DwsProvinceStatsApp extends BaseSqlApp {
    public static void main(String[] args) {
        new DwsProvinceStatsApp().init(4003, 1, "DwsProvinceStatsApp");
    }
    
    @Override
    protected void run(StreamTableEnvironment tEnv) {
        // 1. 使用ddl建动态表, 与kafka的topic进行关联  dwm_order_wide
        tEnv.executeSql("create table order_wide(" +
                            "   province_id bigint, " +
                            "   province_name string, " +
                            "   province_area_code string, " +
                            "   province_iso_code string, " +
                            "   province_3166_2_code string, " +
                            "   order_id bigint, " +
                            "   split_total_amount decimal(20, 2), " +
                            "   create_time string, " +
                            "   et as to_timestamp(create_time), " +
                            "   watermark for et as et -  interval '20' second " +
                            ")with(" +
                            "   'connector' = 'kafka', " +
                            "   'properties.bootstrap.servers' = 'hadoop162:9092,hadoop163:9092, hadoop164:9092', " +
                            "   'properties.group.id' = 'DwsProvinceStatsApp', " +
                            "   'topic' = '" + Constant.TOPIC_DWM_ORDER_WIDE + "', " +
                            "   'scan.startup.mode' = 'earliest-offset', " +
                            "   'format' = 'json' " +
                            ")");
        
        // 在order_wide这张表执行连续查询
        Table result = tEnv.sqlQuery("select" +
                                         "     date_format(tumble_start(et, interval '5' second), 'yyyy-MM-dd HH:mm:ss') stt, " +
                                         "     date_format(tumble_end(et, interval '5' second), 'yyyy-MM-dd HH:mm:ss') edt, " +
                                         "     province_id, " +
                                         "     province_name, " +
                                         "     province_area_code area_code, " +
                                         "     province_iso_code iso_code," +
                                         "     province_3166_2_code iso_3166_2, " +
                                         "     sum(split_total_amount) order_amount, " +
                                         "     count(distinct(order_id)) order_count," +
                                         "    unix_timestamp() * 1000 ts " +
                                         " from order_wide " +
                                         " group by " +
                                         "     province_id, " +
                                         "     province_name, " +
                                         "     province_area_code, " +
                                         "     province_iso_code, " +
                                         "     province_3166_2_code, " +
                                         "     tumble(et, interval '5' second)" +
                                         "");
        
        //         写入到ClickHouse中
        tEnv
            .toRetractStream(result, ProvinceStats.class)
            .filter(t -> t.f0)
            .map(t -> t.f1)
            .addSink(FlinkSinkUtil.getClickHouseSink(Constant.CLICKHOUSE_DB, Constant.TABLE_PROVINCE_STATS, ProvinceStats.class));
        
    }
}
